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SU‐E‐J‐120: X‐Ray Imaging System with Scattering Reduction and Phase Contrast
Author(s) -
Feng Y
Publication year - 2014
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.4888172
Subject(s) - imaging phantom , scattering , collimated light , optics , contrast (vision) , phase (matter) , phase contrast imaging , medical imaging , computer science , image quality , x ray phase contrast imaging , image resolution , physics , materials science , computer vision , artificial intelligence , phase contrast microscopy , image (mathematics) , laser , quantum mechanics
Purpose: To improve X‐ray quality, we proposed an optimization method and a design of imaging system that combine the capabilities of suppressing scattering and enhancing phase contrast. The images were reconstructed by combing both temporal and spatial multiplexing approaches. Methods: Numerical calculation methods were applied to obtain the angle distraction X‐Ray emerging from an object. The geometrical parameters of the imaging system was optimized to achieve high scattering suppress and high angle resolution, in order to obtain high definition imaging enhanced by phase contrast. Numerical method was used to simulate this system to image a phantom with density variations. The Expectation‐maximization algorithm was used to reconstruct images. Results: A primary design of the imaging system was accomplished. The simulation of the imaging system showed high efficiency in suppressing scattering and high sensitivity in phase contrast. Conclusion: The innovated collimation system showed promising in high definition X‐ray imaging with phase contrast.